CN109256534B - 硅-碳复合粉末 - Google Patents
硅-碳复合粉末 Download PDFInfo
- Publication number
- CN109256534B CN109256534B CN201810757271.XA CN201810757271A CN109256534B CN 109256534 B CN109256534 B CN 109256534B CN 201810757271 A CN201810757271 A CN 201810757271A CN 109256534 B CN109256534 B CN 109256534B
- Authority
- CN
- China
- Prior art keywords
- silicon
- sih
- carbon composite
- composite powder
- carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000843 powder Substances 0.000 title claims abstract description 43
- 239000002153 silicon-carbon composite material Substances 0.000 title claims abstract description 32
- 239000002245 particle Substances 0.000 claims abstract description 33
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 31
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000005977 Ethylene Substances 0.000 claims abstract description 8
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 8
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 8
- 150000001282 organosilanes Chemical class 0.000 claims abstract description 8
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims abstract description 7
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims abstract description 7
- 239000001294 propane Substances 0.000 claims abstract description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 5
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 7
- 229910001416 lithium ion Inorganic materials 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 22
- 230000015572 biosynthetic process Effects 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 239000011856 silicon-based particle Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000005543 nano-size silicon particle Substances 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 125000001475 halogen functional group Chemical group 0.000 description 6
- 239000002114 nanocomposite Substances 0.000 description 6
- 239000010453 quartz Substances 0.000 description 6
- 229910010271 silicon carbide Inorganic materials 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 5
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 5
- 238000004627 transmission electron microscopy Methods 0.000 description 5
- 239000007833 carbon precursor Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 229910021419 crystalline silicon Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000011863 silicon-based powder Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical class [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229910021423 nanocrystalline silicon Inorganic materials 0.000 description 3
- 239000002077 nanosphere Substances 0.000 description 3
- 238000005118 spray pyrolysis Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- FDTGUDJKAXJXLL-UHFFFAOYSA-N acetylene Chemical compound C#C.C#C FDTGUDJKAXJXLL-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 239000011258 core-shell material Substances 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000006138 lithiation reaction Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 208000012868 Overgrowth Diseases 0.000 description 1
- 229910018540 Si C Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000011267 electrode slurry Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012073 inactive phase Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000037427 ion transport Effects 0.000 description 1
- 238000001725 laser pyrolysis Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003701 mechanical milling Methods 0.000 description 1
- 238000010303 mechanochemical reaction Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005055 methyl trichlorosilane Substances 0.000 description 1
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 description 1
- KOWXKIHEBFTVRU-UHFFFAOYSA-N nga2 glycan Chemical compound CC.CC KOWXKIHEBFTVRU-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/956—Silicon carbide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
- C01B33/021—Preparation
- C01B33/027—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
- C01B33/029—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by decomposition of monosilane
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
- C01B33/021—Preparation
- C01B33/027—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
- C01B33/035—Preparation by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material by decomposition or reduction of gaseous or vaporised silicon compounds in the presence of heated filaments of silicon, carbon or a refractory metal, e.g. tantalum or tungsten, or in the presence of heated silicon rods on which the formed silicon is deposited, a silicon rod being obtained, e.g. Siemens process
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0421—Methods of deposition of the material involving vapour deposition
- H01M4/0428—Chemical vapour deposition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/02—Amorphous compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Silicon Compounds (AREA)
- Carbon And Carbon Compounds (AREA)
- Chemical Vapour Deposition (AREA)
- Secondary Cells (AREA)
Abstract
本发明涉及硅‑碳复合粉末。具体地,在该硅‑碳复合粉末中,a)Si和C分布在整个颗粒中,和b)颗粒表面上的重量比(C/Si)表面大于整个颗粒内的重量比(C/Si)总计。其如下制备:将SiH4、Si2H6、Si3H8和/或有机硅烷的气体料流和至少一种选自乙烯、乙烷、丙烷和乙炔的烃的气体料流同时导入反应器中,和使用等离子体增强的化学气相沉积使所述料流反应。
Description
技术领域
本发明涉及硅-碳复合粉末,其制造方法及其在锂离子电池中的用途。
背景技术
已知在锂的合金化/去合金化过程中的剧烈体积膨胀/收缩会导致裂缝的形成和随后的活性物质颗粒粉末化,从而导致锂离子电池中的永久容量损失。
为了克服Si阳极的剧烈体积变化并因此获得更好的容量保持和循环寿命,已经使用了各种方法。其中,最有希望的方法是产生纳米复合结构,其中纳米尺寸的Si颗粒被活性壳,优选碳壳包围。
此外,由于在循环期间Si基阳极经历的剧烈体积变化而形成的裂缝导致电极表面暴露于电解质。这导致连续形成厚的固体电解质界面(SEI)层。SEI的过度生长导致低的库仑效率,更高的离子传输阻力和电极的低电子传导性,并最终导致电池干耗(dry-out)。其中纳米尺寸的Si颗粒被碳壳包围的复合材料被证明也有利于抑制SEI的形成[Dimitrijevic等人, J. Power Sources 206 (2012) 343]。
已经采用各种方法制备硅-碳复合材料。方法包括球磨或机械研磨、热解、化学/热气相沉积和凝胶的化学反应。
在WO2013078645A1中,要求保护一种硅-碳复合材料,其包含介孔的硅颗粒和在该硅颗粒上提供的碳涂层,其中硅颗粒具有2-4 nm和20-40 nm的两种孔径分布。碳涂层的厚度为5-10 nm,和碳的含量基于所述复合材料的总重量为10-50重量%。还要求保护一种用于制备所述硅-碳复合材料的方法,包括如下步骤:在球磨的作用下通过SiCl4和Li13Si4之间的机械化学反应和随后热处理和洗涤过程制备介孔的硅颗粒;和利用化学气相沉积在介孔的硅颗粒上涂覆碳。
Ng等人在Angew. Chem., Int. Ed. 2006, 45, 6896中公开了在400℃下在空气中使用喷雾热解法得到的碳涂覆的Si纳米复合材料。在该纳米复合材料中的碳最可能具有无定形的性质。硅的主要部分对应于纳米晶体Si,但可能存在少量的无定形硅。所述硅由厚度为约10 nm的无定形或部分无定形的碳层包围。
Ng等人在J. Phys. Chem. C 2007, 111, 11131中进一步公开了进行低温喷雾热解以制造在可充电锂离子电池中作为阳极材料的Si纳米复合材料。将纳米尺寸的Si颗粒(<100 nm)在柠檬酸/乙醇溶液中进一步喷雾热解,从而在球状Si纳米颗粒的表面上形成一层均匀的碳涂层。
Yang等人在Electrochemistry Communications 28 (2013) 40中公开了含有嵌入碳基质中的Si的复合材料。通过喷雾热解制备该硅-碳纳米复合粉末。将包含活性有机硅烷(在后来的纳米复合材料中形成Si和C两者)的气溶胶在管式炉中在900℃下反应。Si的重量分数估计为40%。重要的是,该方法产生尺寸均匀的颗粒,其中碳和无定形Si分布均匀。
Zhang等人在Nanoscale, 2013, 5, 5384中报道了在锂离子电池中作为阳极材料的无定形硅-碳纳米球的制备。这些纳米球通过化学气相沉积在900℃下而合成,其中使用甲基三氯硅烷(CH3SiCl3)作为Si和C两者的前体。已经发现,Si-C纳米球由约60重量%的无定形C和约40重量%的Si组成,其中直径为400-600 nm和表面积为43.8 m2/g。
Sorice等人在ACS Appl. Mater. Interfaces 2015, 7, 6637中报道了在两阶段激光热解反应器中通过一步连续工艺形成碳覆盖的硅纳米颗粒。在第一阶段中形成的结晶硅核在第二阶段中由主要由碳组成的连续壳覆盖。在Si/C界面处,不存在碳化硅。在第一阶段中,激光束与SiH4流相互作用,从而合成硅纳米颗粒。Ar载气流将它们转移到第二阶段,在该阶段中将乙烯(C2H4)同轴导入。激光束通过两个反射镜传输到第二阶段并发生离焦(defocalize),以最大化C2H4流与硅核之间相互作用的时间。该第二相互作用导致在硅纳米颗粒的小聚集体周围沉积碳壳。将硅纳米颗粒的直径调节为约30 nm。调整激光功率和聚焦以有利于硅核的晶体结构。
Yu等人在Ind. Eng. Chem. Res. 2014, 53, 12697中报道了通过动态化学气相沉积(CVD)工艺以甲苯或乙炔作为碳源在晶体Si纳米颗粒上形成均匀的碳涂层。
Chaukulkar等人在ACS Appl. Mater. Interfaces 2014, 6, 19026中报道了碳涂覆的硅纳米颗粒的等离子体合成。在管式石英反应器中,SiH4以50 W的射频功率向上游注入。将C2H2从SiH4注入点向下游注入石英管中。
尽管与纯Si阳极相比,所有这些方法的硅-碳复合材料阳极提供了更好的循环性能,但是容量衰减仍然需要改进。
据报道,当电压小于50 mV时,在硅的锂化过程中形成晶体LixSi(x≥3.75)。如Iaboni和Obrovac在J. Electrochemical Soc. 2016, 163, A255中所报道的,在锂化时向LixSi(x≥3.75)相的转变导致高的内应力,从而导致颗粒破裂和电池性能衰减。
抑制LixSi(x≥3.75)的形成的方法之一是将含Si电极的循环电压限制在50 mV以上。然而,这导致电池能量密度显著降低。除了具有较低的能量密度之外,限制含Si电极的电压可能是不实际的,因为高密度合金电极可能与石墨或其他形式的碳共混。在这种电极中,合金相必须循环到低电压,以使石墨或碳有活性。因此,希望在不限制电压的情况下抑制LixSi(x≥3.75)的形成。
抑制LixSi(x≥3.75)的形成可以在包含活性Si相和非活性基质相的颗粒中实现,例如在含Si合金和Si/SiOx(x≤2)复合材料中所发现的。然而,非活性相降低了材料的比容量,因此是不希望的。
发明内容
本发明的主题是硅-碳复合粉末,其中
a)Si和C分布在整个颗粒中,和
b)颗粒表面上的重量比(C/Si)表面大于整个颗粒内的重量比(C/Si)总计。
在这种硅-碳复合粉末中,如电压与容量测量所证明的,LixSi(x≥3.75)的形成受到抑制。此外,在该硅-碳复合粉末的表面上的较高C含量在抑制过度SEI生长方面是有利的。
本发明的硅-碳复合粉末具有令人惊讶的性质,即它不具有可通过透射电子显微镜(TEM)检测到的核壳结构。
通过透射电子显微镜(TEM)中的能量色散x射线分析(EDX)测定颗粒表面上的重量比(C/Si)表面和重量比(C/Si)总计两者。
在一个优选的实施方案中,比率(C/Si)表面/(C/Si)总计为3≤(C/Si)表面/(C/Si)总计≤130。在另一个优选的实施方案中,比率(C/Si)表面/(C/Si)总计为10≤(C/Si)表面/(C/Si)总计≤50。
重量比(C/Si)总计优选为0.01≤(C/Si)总计≤3,更优选0.3≤(C/Si)总计≤1。
与现有技术相反,在本发明的粉末中,Si和C分布在整个颗粒中。通过透射电子显微镜(TEM)没有检测到核壳结构。此外,在本发明的粉末中没有检测到碳化硅。
本发明粉末的Si和C可以是结晶的或无定形的。对于其以后作为锂离子电池的一部分的用途,Si和C优选是无定形的。
本发明粉末的颗粒可以是分离的或聚集的形式。平均颗粒直径优选为300 nm或更低,更优选为20-100 nm。
本发明还提供一种用于制备所述硅-碳复合粉末的方法,其中将SiH4、Si2H6、Si3H8和/或有机硅烷的气体料流和至少一种选自乙烯、乙烷、丙烷和乙炔的烃的气体料流同时导入反应器中,其中使用等离子体增强的化学气相沉积使所述料流反应。
烃与SiH4和/或有机硅烷的比例可在很宽的范围内选择。优选地,该比例为0.01-3。
所述有机硅烷可以选自如下:CH3SiH3、(CH3)2SiH2、(CH3)3SiH、C2H5SiH3、(C2H5)2SiH2、(C2H5)3SiH、(CH3)4Si、(C2H5)4Si、C3H7SiH3、(C3H7)4Si、C4H9SiH3、(C4H9)2SiH2、(C4H9)3SiH、(C4H9)4Si、C5H11SiH3、(C5H11)2SiH2、(C5H11)3SiH、(C5H11)4Si、C6H13SiH3、(C6H13)4Si、(C7H15)SiH3、(C7H15)2SiH2、(C7H15)3SiH、(C7H15)4Si。
最优选CH3SiH3、(CH3)2SiH2和(CH3)3SiH。
乙烯、乙烷和丙烷是优选的烃。乙炔是更具反应性的起始材料,必须注意避免形成SiC。也就是说,要么使用低浓度的乙炔,要么改变等离子体增强的化学气相沉积的设置。
包含硅烷和烃的反应混合物的平均停留时间可以用于影响平均颗粒平均直径。减少等离子体中的停留时间通常会减小颗粒直径。因此,4秒的停留时间产生300 nm的平均颗粒大小,1秒的较短停留时间导致平均颗粒大小低于100 nm。
使用0.5秒的停留时间导致获得颗粒平均直径低于50 nm的粉末。
本发明的另一主题是硅-碳复合粉末在制造锂离子电池中的用途。
附图说明
图1显示了实施例中的粉末的x射线衍射(XRD)图案;
图2显示了根据对比实施例5的硅-碳复合粉末的电化学电池研究结果;
图3显示了根据实施例1-4制备的硅-碳复合粉末的电化学电池研究结果。
具体实施方式
实施例1(本发明)
将射频(RF)非热等离子体应用于化学气相沉积(CVD)方法以产生粉末材料。该装置包括RF等离子体源,管状石英反应器,泵,工艺气体入口,排气口和粉末收集室。将石英管反应器抽空至10-100 mbar的基础压力。等离子体源频率为13.56 MHz,RF功率设定为50-200 W。将稀释在Ar中的SiH4和乙烯通过质量流量控制器同时注入。气体混合物中硅烷的浓度为20体积%。CHx/SiH4的比例为0.16。气体流速和压力用于调节等离子体中的停留时间。
4秒的较长停留时间导致获得颗粒平均直径低于300 nm的粉末。1秒的较短停留时间导致获得颗粒平均直径低于100 nm的粉末。使用0.5秒的停留时间导致获得低于50 nm的粉末初级颗粒平均直径。
在所获得的硅-碳复合粉末中,Si和C分布在整个颗粒中。颗粒表面上的重量比(C/Si)表面为3.5,并且在整个颗粒内的重量比(C/Si)总计为1.0,如通过在透射电子显微镜(TEM)中的能量色散X射线分析(EDX)所测定的。在硅-碳复合粉末中的比率(C/Si)表面/(C/Si)总计为3.5。
实施例2-4:使用实施例1中描述的条件进行进一步的实施方案。与实施例1相比,在实施例2-4中的碳前体气体CHx的类型如表格中所列举的而变化。硅-碳复合粉末参数的变化在表格中给出。
实施例5(对比):使用实施例1中描述的条件进行进一步的实施方案。与实施例1相比,仅将SiH4引入石英管反应器中。不使用碳前体气体。所得粉末仅含硅。因此,在颗粒表面上的的重量比(C/Si)表面和在整个颗粒内的重量比(C/Si)总计为零。
实施例5中的硅粉末与实施例1-4中的硅-碳复合粉末之间的差异在图1所示的x射线衍射(XRD)图案中也是明显的(x-轴 = 2θ(度);y-轴 = 强度(a.u.))。实施例5中制备的硅粉末(A)的XRD图案的特征在于,纳米晶体Si在28.4°附近的尖峰和无定形Si的宽峰(无定形晕(amorphous halo))。根据定量相分析,晶体硅的量为20体积%。
与硅粉末(A)相比,硅-碳复合粉末(B)的XRD图案中的无定形晕的强度降低并且稍微转移到更高的衍射角。在28.4°附近的尖峰是由于纳米晶体Si,其在硅-碳复合粉末(B)中的存在量为4体积%。无定形晕强度降低和晕位移表明硅-碳复合粉末的形成,其中Si和C分布在整个颗粒中,即无定形晕由Si和C混合物产生。
在球磨机中制备含有根据对比实施例5制备的硅粉末、苯乙烯-丁二烯橡胶的水溶液和碳纳米管的电极浆料,随后将其涂覆在铜箔上并干燥。由粉末涂料冲压出圆盘,并将其掺入具有Li金属对电极和1M LiPF6的碳酸亚乙酯/碳酸二甲酯电解质的纽扣电池中。图2(x-轴 = 容量(mAh/g);y-轴 = 电压(V))显示了根据对比实施例5的硅-碳复合粉末的电化学电池研究结果。存在由于LixSi(x≥3.75)相的脱锂而形成的特征电压坪(voltageplateau)。相反地,在含有根据实施例1-4制备的硅-碳复合粉末的电极中,有效地抑制了对电极稳定性相有害的LixSi(x≥3.75)的形成,这可以从图3中不存在所述特征电压坪而确认。在图2和图3中,数字1、2、3、20、50表示第1、第2......充电循环。图2中的“*”表示与LixSi(x≥3.75)化合物的脱锂相关的坪。
实施例6(对比):使用实施例1中描述的条件进行进一步的实施方案。与实施例1相比,将乙炔作为碳前体气体CHx引入石英管反应器中,并且CHx/SiH4的比例为1。对比实施例6的主要反应产物是无定形的SiC,只有一小部分主要是晶体Si,这是不希望的。根据TEM中的EDX分析,C/Si比例没有显著差异(参见表格):颗粒表面上的重量比(C/Si)表面和整个颗粒内的重量比(C/Si)总计为1.3。对比实施例6的材料(C)的XRD图案中的无定形晕转移到更高的衍射角,这表明形成了无定形SiC。这种类型的材料不太适合电池应用。
表格:实施例1-6的工艺气体参数和粉末性质
实施例 | CHx* | SiH4 (体积%) | CHx/SiH4 | (C/Si)总计 | (C/Si)表面 | (C/Si)表面/(C/Si)总计 |
1 | 乙烯 | 20 | 0.16 | 1.0 | 3.5 | 3.5 |
2 | 乙烷 | 20 | 0.16 | 0.7 | 16.8 | 25 |
3 | 丙烷 | 20 | 0.15 | 0.4 | 49.0 | 125 |
4 | 乙炔 | 20 | 0.14 | 0.3 | 9.0 | 32 |
5 | - | 20 | 0 | 0 | 0 | 0 |
6 | 乙炔 | 10 | 1 | 1.3 | 1.3 | 1 |
* 碳前体气体。
Claims (8)
1.硅-碳复合粉末,其特征在于,
a)Si和C分布在整个颗粒中,和
b)颗粒表面上的重量比(C/Si)表面大于整个颗粒内的重量比(C/Si)总计,和
c)所述硅-碳复合粉末的平均颗粒直径为300nm或更小,
其中Si和C是无定形的。
2.根据权利要求1所述的硅-碳复合粉末,其特征在于,
3≤(C/Si)表面/(C/Si)总计≤130。
3.根据权利要求1或2所述的硅-碳复合粉末,其特征在于,
0.01≤(C/Si)总计≤3。
4.用于制备根据权利要求1至3中任一项所述的硅-碳复合粉末的方法,其特征在于,
将SiH4、Si2H6、Si3H8和/或有机硅烷的气体料流和至少一种选自乙烯、乙烷、丙烷和乙炔的烃的气体料流同时导入反应器中,其中使用等离子体增强的化学气相沉积使所述料流反应。
5.根据权利要求4所述的方法,其特征在于,
烃与SiH4和/或有机硅烷的比例为0.01-3。
6.根据权利要求4或5所述的方法,其特征在于,
所述烃是乙烯、乙烷或丙烷。
7.根据权利要求4或5所述的方法,其特征在于,
所述有机硅烷是CH3SiH3、(CH3)2SiH2或(CH3)3SiH。
8.根据权利要求1至3中任一项所述的硅-碳复合粉末在制造锂离子电池中的用途。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17181002.1A EP3428999A1 (en) | 2017-07-12 | 2017-07-12 | Silicon-carbon composite powder |
EP17181002.1 | 2017-07-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109256534A CN109256534A (zh) | 2019-01-22 |
CN109256534B true CN109256534B (zh) | 2024-01-26 |
Family
ID=59325221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810757271.XA Active CN109256534B (zh) | 2017-07-12 | 2018-07-11 | 硅-碳复合粉末 |
Country Status (6)
Country | Link |
---|---|
US (1) | US11312633B2 (zh) |
EP (1) | EP3428999A1 (zh) |
JP (1) | JP7184552B2 (zh) |
KR (1) | KR102499982B1 (zh) |
CN (1) | CN109256534B (zh) |
TW (1) | TWI771447B (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102207529B1 (ko) * | 2018-03-14 | 2021-01-26 | 주식회사 엘지화학 | 비정질 실리콘-탄소 복합체, 이의 제조방법 및 이를 포함하는 리튬 이차전지 |
WO2021068054A1 (en) * | 2019-10-09 | 2021-04-15 | Pyrogenesis Canada Inc. | Nano-silicon particles/wire production by arc furnace for rechargeable batteries |
GB2592055A (en) * | 2020-02-14 | 2021-08-18 | Cenate As | Predominantly amorphous silicon particles and use thereof as active anode material in secondary lithium ion batteries |
CN111584846B (zh) * | 2020-05-21 | 2022-05-24 | 合肥国轩高科动力能源有限公司 | 一种类麻球结构的硅碳材料及其制备方法和应用 |
EP3965185A1 (en) * | 2020-09-02 | 2022-03-09 | Evonik Operations GmbH | High performance silicon-based materials for lithium ion battery anodes |
CN113461016B (zh) * | 2021-06-30 | 2023-05-23 | 松山湖材料实验室 | 一种硅碳负极材料及其制备方法和应用 |
CN115548338A (zh) * | 2021-06-30 | 2022-12-30 | 贝特瑞新材料集团股份有限公司 | 负极材料及其制备方法、锂离子电池 |
CN113321215A (zh) * | 2021-07-06 | 2021-08-31 | 浙江中宁硅业有限公司 | 碳硅复合颗粒及其制备方法和制备装置 |
EP4234489A1 (en) | 2022-02-24 | 2023-08-30 | Cenate AS | Secondary and tertiary composite particles |
WO2024048288A1 (ja) * | 2022-09-01 | 2024-03-07 | Dic株式会社 | 負極活物質前駆体、負極活物質、二次電池および負極活物質の製造方法 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005029552A2 (en) * | 2003-09-17 | 2005-03-31 | Midwest Research Institute | Sn-c structures prepared by plasma-enhanced chemical vapor deposition |
JP2007188873A (ja) * | 2005-12-13 | 2007-07-26 | Mitsubishi Chemicals Corp | 非水電解液二次電池 |
CN102683660A (zh) * | 2012-06-01 | 2012-09-19 | 中国东方电气集团有限公司 | 一种用于制备锂离子电池的炭硅复合负极材料的制备方法 |
CN103280581A (zh) * | 2013-05-20 | 2013-09-04 | 中国科学院过程工程研究所 | 一种锂离子电池负极材料及其制备方法 |
CN103378368A (zh) * | 2012-04-17 | 2013-10-30 | 万向电动汽车有限公司 | 一种硅负极锂离子电池及制造方法 |
CN103456926A (zh) * | 2012-05-31 | 2013-12-18 | 海洋王照明科技股份有限公司 | 硅-石墨烯复合材料、锂离子电池的制备方法 |
KR101371555B1 (ko) * | 2012-10-24 | 2014-03-12 | 재단법인 포항산업과학연구원 | 리튬 이차전지 음극 활물질용 실리콘-탄소 복합 나노 분말의 제조방법 |
CN103700819A (zh) * | 2013-12-30 | 2014-04-02 | 合肥国轩高科动力能源股份公司 | 表面具有梯度变化包覆层的硅复合负极材料的制备方法 |
CN105122510A (zh) * | 2013-02-22 | 2015-12-02 | 株式会社丰田自动织机 | 负极活性物质及其制造方法以及蓄电装置 |
CN106058207A (zh) * | 2016-08-02 | 2016-10-26 | 中国科学技术大学 | 制备硅碳复合材料的方法、硅碳复合材料及用于锂离子电池的负极 |
WO2016204512A1 (ko) * | 2015-06-15 | 2016-12-22 | 울산과학기술원 | 리튬 이차 전지용 음극 활물질, 이의 제조 방법, 및 이를 포함하는 리튬 이차 전지 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6593653B2 (en) * | 1999-09-30 | 2003-07-15 | Novellus Systems, Inc. | Low leakage current silicon carbonitride prepared using methane, ammonia and silane for copper diffusion barrier, etchstop and passivation applications |
JP4994634B2 (ja) * | 2004-11-11 | 2012-08-08 | パナソニック株式会社 | リチウムイオン二次電池用負極、その製造方法、およびそれを用いたリチウムイオン二次電池 |
FR2885734B1 (fr) * | 2005-05-13 | 2013-07-05 | Accumulateurs Fixes | Materiau nanocomposite pour anode d'accumulateur au lithium |
KR20120051719A (ko) * | 2009-07-31 | 2012-05-22 | 다우 코닝 도레이 캄파니 리미티드 | 전극활물질,전극 및 축전 디바이스 |
KR101147243B1 (ko) * | 2010-10-27 | 2012-05-18 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 음극 활물질 및 이를 포함하는 리튬 이차 전지 |
FR2975833B1 (fr) * | 2011-05-24 | 2013-06-28 | Ecole Polytech | Anodes de batteries li-ion |
FR2981643B1 (fr) * | 2011-10-25 | 2013-12-27 | Commissariat Energie Atomique | Procede de preparation d'un materiau composite silicium/carbone, materiau ainsi prepare, et electrode notamment electrode negative, comprenant ce materiau. |
CN103107315B (zh) * | 2011-11-10 | 2016-03-30 | 北京有色金属研究总院 | 一种纳米硅碳复合材料及其制备方法 |
WO2013078645A1 (en) | 2011-11-30 | 2013-06-06 | Shanghai Jiao Tong University | Mesoporous silicon/carbon composite for use as lithium ion battery anode material and process of preparing the same |
KR101630008B1 (ko) * | 2013-02-19 | 2016-06-13 | 주식회사 엘지화학 | Si/C 복합체, 이의 제조 방법, 및 이를 포함하는 리튬 이차 전지용 음극 활물질 |
CN103170315A (zh) * | 2013-02-28 | 2013-06-26 | 北京化工大学常州先进材料研究院 | 一种用于废气处理的疏水蜂窝金属有机骨架及制备方法 |
CN103455326A (zh) | 2013-08-02 | 2013-12-18 | 张妍娴 | 一种用于供应链的质量检验软件 |
KR20150065078A (ko) * | 2013-12-04 | 2015-06-12 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 |
KR101761004B1 (ko) * | 2015-06-08 | 2017-07-25 | 오씨아이 주식회사 | 실리콘-탄소 복합체 제조용 조성물, 실리콘-탄소 복합체, 이를 포함하는 이차전지용 전극 및 실리콘-탄소 복합체 제조방법 |
-
2017
- 2017-07-12 EP EP17181002.1A patent/EP3428999A1/en active Pending
-
2018
- 2018-07-09 TW TW107123637A patent/TWI771447B/zh active
- 2018-07-11 US US16/032,683 patent/US11312633B2/en active Active
- 2018-07-11 KR KR1020180080329A patent/KR102499982B1/ko active IP Right Grant
- 2018-07-11 CN CN201810757271.XA patent/CN109256534B/zh active Active
- 2018-07-12 JP JP2018132563A patent/JP7184552B2/ja active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005029552A2 (en) * | 2003-09-17 | 2005-03-31 | Midwest Research Institute | Sn-c structures prepared by plasma-enhanced chemical vapor deposition |
JP2007188873A (ja) * | 2005-12-13 | 2007-07-26 | Mitsubishi Chemicals Corp | 非水電解液二次電池 |
CN103378368A (zh) * | 2012-04-17 | 2013-10-30 | 万向电动汽车有限公司 | 一种硅负极锂离子电池及制造方法 |
CN103456926A (zh) * | 2012-05-31 | 2013-12-18 | 海洋王照明科技股份有限公司 | 硅-石墨烯复合材料、锂离子电池的制备方法 |
CN102683660A (zh) * | 2012-06-01 | 2012-09-19 | 中国东方电气集团有限公司 | 一种用于制备锂离子电池的炭硅复合负极材料的制备方法 |
KR101371555B1 (ko) * | 2012-10-24 | 2014-03-12 | 재단법인 포항산업과학연구원 | 리튬 이차전지 음극 활물질용 실리콘-탄소 복합 나노 분말의 제조방법 |
CN105122510A (zh) * | 2013-02-22 | 2015-12-02 | 株式会社丰田自动织机 | 负极活性物质及其制造方法以及蓄电装置 |
CN103280581A (zh) * | 2013-05-20 | 2013-09-04 | 中国科学院过程工程研究所 | 一种锂离子电池负极材料及其制备方法 |
CN103700819A (zh) * | 2013-12-30 | 2014-04-02 | 合肥国轩高科动力能源股份公司 | 表面具有梯度变化包覆层的硅复合负极材料的制备方法 |
WO2016204512A1 (ko) * | 2015-06-15 | 2016-12-22 | 울산과학기술원 | 리튬 이차 전지용 음극 활물질, 이의 제조 방법, 및 이를 포함하는 리튬 이차 전지 |
CN106058207A (zh) * | 2016-08-02 | 2016-10-26 | 中国科学技术大学 | 制备硅碳复合材料的方法、硅碳复合材料及用于锂离子电池的负极 |
Also Published As
Publication number | Publication date |
---|---|
US20190016601A1 (en) | 2019-01-17 |
JP2019021630A (ja) | 2019-02-07 |
EP3428999A1 (en) | 2019-01-16 |
JP7184552B2 (ja) | 2022-12-06 |
US11312633B2 (en) | 2022-04-26 |
CN109256534A (zh) | 2019-01-22 |
KR102499982B1 (ko) | 2023-02-15 |
KR20190007397A (ko) | 2019-01-22 |
TWI771447B (zh) | 2022-07-21 |
TW201908239A (zh) | 2019-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109256534B (zh) | 硅-碳复合粉末 | |
Fu et al. | Aligned carbon nanotube‐silicon sheets: A novel nano‐architecture for flexible lithium ion battery electrodes | |
KR102171499B1 (ko) | 리튬 이차 전지 음극재용 탄소-규소-규소 복합산화물 복합체 및 그 제조 방법 | |
Susantyoko et al. | Germanium coated vertically-aligned multiwall carbon nanotubes as lithium-ion battery anodes | |
Güneş | A direct synthesis of Si-nanowires on 3D porous graphene as a high performance anode material for Li-ion batteries | |
JP7155137B2 (ja) | 不動態層で被覆されたコアを備えるナノ粒子、その製造のためのプロセスおよびその使用 | |
Hou et al. | Silicon carbon nanohybrids with expandable space: A high-performance lithium battery anodes | |
JP7455425B2 (ja) | ケイ素・酸化ケイ素-炭素複合材料、その調製方法、およびそれを含むリチウム二次電池用負極活物質 | |
JP2010272411A (ja) | 非水電解質二次電池用負極材及びその製造方法、ならびにリチウムイオン二次電池及び電気化学キャパシタ | |
Alvarez Barragan et al. | Silicon-carbon composites for lithium-ion batteries: A comparative study of different carbon deposition approaches | |
CN112242504B (zh) | 一种碳化硅包覆的空心硅材料、其制备方法以及使用该材料的电极和电化学装置 | |
CN111653737A (zh) | 一种具有梯度预锂化结构的氧化硅复合材料及其制备方法、应用 | |
Orthner et al. | Direct gas phase synthesis of amorphous Si/C nanoparticles as anode material for lithium ion battery | |
CN110729471A (zh) | 一种锂离子电池硅@石墨烯/cvd碳复合负极材料及其制备方法和应用 | |
Chen et al. | Porous Si@ C coaxial nanotubes: Layer-by-layer assembly on ZnO nanorod templates and application to lithium-ion batteries | |
JP2023553708A (ja) | 金属イオンバッテリ用電気活性材料 | |
US20220052323A1 (en) | Synthesis of graphitic shells on silicon nanoparticles | |
Chen et al. | Templated magnesiothermic synthesis of silicon nanotube bundles and their electrochemical performances in lithium ion batteries | |
CN116759558A (zh) | 一种亚纳米结构硅负极材料及其制备方法与应用 | |
Leblanc et al. | Silicon nanopowder synthesis by inductively coupled plasma as anode for high-energy Li-ion batteries | |
Wang et al. | Rapid fabrication of porous silicon/carbon microtube composites as anode materials for lithium-ion batteries | |
US20160016143A1 (en) | APPARATUS FOR MANUFACTURING Si-BASED NANO-PARTICLES USING PLASMA | |
CN112678801B (zh) | 纳米非晶C-Si-C复合材料及其制造方法和制造装置 | |
KR20130046486A (ko) | 리튬이차전지 음극용 주석-주석산화물 하이브리드 나노구조물과 그의 제조방법 | |
CN116670859A (zh) | 负极活性材料、负极浆料、负极和二次电池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information |
Address after: Essen, Germany Applicant after: Evonik Operations Ltd. Address before: Essen, Germany Applicant before: EVONIK DEGUSSA GmbH |
|
CB02 | Change of applicant information | ||
GR01 | Patent grant | ||
GR01 | Patent grant |